Heroic: The Celestial Planetarium and its Normal mode equivalent The Celestial Planetarium is the second step in the Algalon the Observer attunement quest chain.

Simply walk across the antechamber to the east end of the wing and kill the guardian in front of the door.


Prospector Loren at the Archivum in Ulduar wants you to locate the entrance to the Celestial Planetarium.

  • Entrance to Celestial Planetarium located


Listen, <lad/lass>! Azeroth's fate is at stake here.

Our only chance is to get to the Celestial Planetarium in time to find this Algalon and stop him from beaming back any messages to his Titan masters.

Locate the Celestial Planetarium and come back with any information you get. We might still have some time to prepare for Algalon's arrival.


You will receive: 14Gold 80Silver (+16Gold 53Silver at maximum level)




Quest progression

  1. Neutral 15 [80R] Heroic: Archivum Data Disc
  2. Neutral 15 [80R] Heroic: The Celestial Planetarium
  3. Complete all of the following:
  4. Neutral 15 [80R] Heroic: Algalon
  5. Neutral 15 [80R] Heroic: All Is Well That Ends Well

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